And the iiitson motor



3 Sheets-Sheet 1 (No Model.)

L. G. HUSON.

' ROTARY ENGINE.

No. 398,782. Patented Feb. 26, 1889.

4%. 223532, BY WM :Q

A WITNESSES: dud, W

ATTORNEYS.

N PETERS Lillvognpher, Wrnhmglon, D. C.

(No Modl.) 3 Sheets-Sheet 2. L. G. HUSON.

ROTARY ENGINEL No. 398,782. Patented Feb. 26, 1889.

A WITNESSES: v INVENTORL ATTORNEYS.

3 Sheets-Sheet 3.

L. G. HUSON.

ROTARY ENGINE.

(No Model.)

No. 398,782. Patented Feb. 26, 1889.

ATTORNEYS.

Nv PETERS. Phawmhu m her, Wnhmgkon, Dv C.

llniTnn STaTns PATENT Orricn.

LEwIs c. n son, or manna, assieivon, ni' DIRECT AND nnsnn ASSIGN- MENTS,TO nonnvn 1;. or nannornsronr, NEW YORK, JOHN n. nosna, or scniis'nm,PENNSYLVANIA, AND THE ncson no'ron oonrimv, Lnirrnn ROTARY ENGINE.

$PECIFICATION forming part of Letters Patent No. 398,782, dated February26, 1889.

Application filed March 9, 1888. Serial No. 266,716. (No model.) i

T (0% whom it may concern: the valves 1 g, so by turning the lever oneBe it known that I, LEWIS C. H rsox, ot' Eloi. the valves 0 y will beopened and the other mira, in the county of Chemung and State of iclosed. Similar valves, 71,71, are arranged to New York, have invented anew and useful control the exhaust, and are connected in like 5Improvement in Rotary Engines, of which manner with a lever, II.

the following is a specification. By adj ustin the levers. G ll to openvalve My invention is an improvement in rotary g in chamber D and valveit in chamber D engines, and seeks to yoke or connect the pisthe enginemay be caused to turn in one di' ton-sections, to arrange the pistonsteamrection, and may be operated in the reverse I0 chambers for thesteam which operates said direction by opening valves g 71.

sections in and out, so such sections will both I A suitable lubricator,I, connects with the be acted on by steam admitted through thesteam-pipe E, and so supplies oil to properly same opening or channel,and to provide for lubricate the interior of the engine. The theutilization of the steam in drawing the se heads A of the casing areformed with open- I 5 tions in as well as in forcing them out. ings a,threaded to receive the journal-like The invention also seeks to provideother boxes .l, which are threaded to fit the openimprovements, as willbe described; and it conings a, and have their heads or flanges formedsists in certain features of construction and with openings or socketsj, to receive the pronovel combinations of parts, as will be hercijections 7c on the wrenches K, which latter 20 inafter set forth. arelocked in place when the boxes J have In the drawings, Figure 1 is aperspective been turned to the desired extent, and so lock view of myimproved engine. Fig. 2 is a tie the boxes J from jarring or otherwisebecomtached sectional view showing the exhaustingloose. To this end Iturn screws 7; through valves. Fig. is a detail view of the piston. thearms K into the casing or framing, they 25 Fig. 4 is a crosssectionalview of the engine. f thus serving as fastenings and operating to Fig. 5is a section of the engine drawn on a lock both parts J and K inposition. line parallel. with the shaft, and Fig. 6 is a I provide thecasing or framing with the detail view of the head or drum with thepisportions L extending usually from the headtons therein. plates andform the lower seats for the shafts 30 The casing or framing has heads AA and in said portions L, the shafts being secured a rim or barrel, B,which latter has steam inby j ournal-caps Z, these hearings L Z beingthe So let and exhaust ports Z1 arranged on opposite main bearings forthe shaft, as will be readily sides of what may be called its abutment?seen. portion 0. These ports I) are either inlet or The shaft M has thehead or drum N se- 3 5 exhaust ports, according to the adjustment ofcured on it within the casing. This head N the valves, as will. bereadilyunderstood, such is arranged ecccntrically to the cylinder orports leadingintovalve-chambersDD,which barrel B, its rim orcircumference moving have ports leading to the steam-supply pipe closelyagainst the abutment C.

E, branched at c to unite with both chambers A way, 17, for the pistonis formed radially 40 D D and to the exhaust-pipe F, branched at throughthe head N, and ports or channels a f, so it may also unite with bothchambers D n are formed from the circumference of the D'. It will beseen that I make the exhausthead and intersect the way n. The channelports larger than the live-steam ports, as by it opens at its inner endinto the way 11 atabout so doing I avoid all choking of the exhaust, thecenter of the head, while the opening a 45 which, as is well known,operates detrimentopens into the way 22. between the center and ally tothe working of engines. Valves 9 g, the circumference of the head, andthe cha n 5 operating in the chambers D 1), control the nels n a openout of the circumference of inlet of steam thereto, and are connected toa the head a distance apart about one-third the lever, G, pivotedbetween its connection with l circumference of the head. They also open0 so that the action of the steam therein on opposite sides of one endof the way n, as clearly shown in Fig. 4. These channels a n' serve toadmit steam to the steam-chambers or receptacles in the piston, as willbe more fully described hereinafter.

The piston 0, preferably formed of brass, operates in the way 12, and isformed in secti ons O loosely yoked together at their inner ends,whereby they are capable of a limited independent movement. This yokingmay be accomplished in various ways; but by preference I effect it bythe novel construction of the sections at their inner ends, and I alsoprefer to so construct the interlocking portions that they will providechambers in which the steam may act for forcing the sections in and out,and also so that the said chambers will be arranged in such manner thatthe steam will act equally at the opposite sides of the inner-edges ofthe sections, so that such sections will not be given a greater pressureat one side than the other, and so given a binding tendency within theway therefor. To this end I prefer to construct the section 0 with aT-shaped head or portion, 0, at its inner end, and the section 0 withL-shaped portions at the opposite sides of its inner end, which portions0 lap over and interlock with the head of the T-shaped portion 0, andthus interlock the sections 0 0 This interlocking is effected so thatthe'parts O 0 may move slightly independently, and so that asteam-chamber, P, may be provided between the end of portion 0 and theend of the section 0 and a chamber, P, may be provided on the oppositesides of-the shank of portion 0' and between the head of such portionand those of the port-ions 0 as shown. The inner edges of the heads ofportions o 0 being the the walls of chamber P, form bearings for theaction of the steam, which bearings, as shown, face toward the outerends of the sections 0 may in a measure serve to draw the sections in,so that such sections will not only be forced in by contact with thecurved walls of the casing, but will also be given such a tendency bythe action of the steam. By this construction I avoid the frictionbetween the outer ends of the piston and the inner surface of the barrelof the casing incident to those engines in which the sections of thepiston are forced in by the bearing thereagainst of the casing. Thisdrawing of the sections inward by the action of the steam is animportant feature of my invention. XVhen steam is admitted into thechamber P, the sections 0 O? are forced outward, while the reverse isthe case when steam is admitted to the chamber P.

In operation, when the parts are in the position shown in Fig. 4:, steamenters through channels a into the chamber P, holding thepiston-sections steam-tight against the casing until the pistoirsection0 shall have been pressed in so far as to close the inner end of channeln, when the exhaust-steam, entering through channel n into chambers P,will serve to draw the sections 0' O in, slightly easing their pressureagainst the cylinder. It will be seen that chambers P I are neither everentirely closed, the diameter of the easing being such relatively to thepiston-sections as to prevent the latter being ad usted outward so faras to close the chamber .P, and the shoulders 0 of the section 0abutting the ends of portions 0 before the chamber P can be closed, theentire closure of both chambers P P being thus prevented. The saidchambers P P, being never entirely closed, have, it will be understood,within them at all times during operation steam, either live or exhaust,so that the sections of the piston are balanced between the pressure ofexhaust-steamin one chamber and live steam in the other, or adj usted inor out as the pressurein one chamber exceeds that in the other.

By properly adjusting the live steam and exhaust valves, as beforedescribed, the engine may be caused to operate in either direction. Y

By operating the piston-sections in and out by steam action, as beforedescribed, the op eration of the engine is rendered easier, the frictionbeing largely reduced.

The oil supplied to the steam-pipe in the manner described passes intothe casing and keeps the moving parts therein properly lubricated.

Having thus described my invention, what I claim as new is 1. In arotary engine, a piston formed in sections having their inner edgesconstructed to loosely interlock with each other, whereby such sectionsare connected together, and yet may move to a limited extentindependently of each other, substantially as set forth.

2. In a rotary engine, the casing and the head having a way for thepiston, combined with said piston fitted to the way and formed ofsections loosely yoked together, substantially as set forth.

3. In a rotary engine, the combination of the casing, the head or drumhaving a way for the piston, and the sectional piston fitted to saidway, and having its sections provided at their inner edges withinterlapping portions, whereby they are yoked together, substantially asset forth.

4. The combination of the casing, the drum or head having a way for thepiston and provided with steam ports or channels intersecting said way,and the piston formed in sections having bearin in advance of their i11-ner ends, such bearings facing toward the outer ends of the piston,whereby steam acting on said bearings may operate to draw the pistonsinward, substantially as set forth.

5. In a rotary engine, the combination of the casing, the head or drumhaving channels 'n n and a way for the'piston, and the piston-sections O0 the section 0 being provided at its inner end with a T-like head, andthe section 0 having at the opposite sides 01' its inner end L-shapedportions e11 gaging the T-head of. the section 0, substantially as setforth,

6. The eenribination with the casing and; the head or drum thereiinoifthe independent valve-elrambers communicating with the easing onopposite sides of the almt'nient, independent steam and exhaust valvesin each of I said chambers a lever eoni'iecting' the eX- haust-valve ofone chamber with that of the other, and a lever connecting thesteam-supply valve of one chamber with that of the other, allsubstantially as and for the pur poses specified.

7. In a rotary engine, the combination,with

LE \VIS C. HUSON'.

Witnesses:

GEO. P. HASTINGS, A. H. ORTON.

